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A Green Local Test Can Hide a Broken Project Graph

“The tests pass on my machine” is often treated as a testing problem. Sometimes it is really a dependency-graph problem. Consider a browser application that contains a small deterministic rule: given…

  • Local tests pass but CI fails due to build contract differences.
  • Test project imports application head, bringing build graphs and property-sensitive behavior.
  • Refactor by moving rule to neutral library for both application and test project.

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